Fastener



May 19, 1925. 1,538,314

E. J. DOONER FAS TENER FiledSept. 12. 1924 I N V EN TOR. 11391444120 JDo ONER A TTORNEY.

Patented May 19, 1925.

EDWARD J. DOONER, OF NEW YORK, N. Y.

FASTENER.

App1icat1on filed September 12, 1924. Serial No. 737,888;

To all whom it may concern:

Be it known that I, EDWARD J. DOONER, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Fasteners, of which the following is a specification.

This invention relates to metallic fasteners and thelike and more particularly to a novel and improved construction ada ted to securely retain a plurality of sheets 0 paper or other flat objects which may be easily penetrated.

The primary object of my invention is to provide a fastener particularly adapted as a paper fastener wherein the shanks or legs may easily penetrate the paper and be locked on the opposite side so as to clamp the papers between a head and the bent shanks.

Another object of my invention is the provision of a paper fastener having a head and two complementary shanks, the shanks being bent substantially intermediate their ends in such manner as to collapse outwardly and clamp the paper beneath the head when the fastener is flattened.

To enable others skilled in the art to fully comprehend the underlying features of my invention that they may embody the same in the various modifications in structure and relation contemplated, drawings depicting a preferred form have been annexed as a part of this disclosure and in such drawings, similar reference characters denote corresponding parts throughout all the views, of.

which,

Figure 1 is a front view of the fastener, the head thereof being shown in section.

Figure 2 is a side view.

Figure 3 is a rear view.

Figure 4 is a plan view.

Figure 5 is a view showing the fastener in its collapsed condition in full lines.

Referring now to the drawings wherein like reference characters designate corresponding parts throughout the several views, 5 designates an annular, concave head, the peripheral edge 6 of which, is bent inwardly to form a seat for a pair of interlocking shanks, now to be described.

Each shank is formed from a strip of sub-- stantially wide metal, shaped to conform to the curvature of the head as indicated by numeral -7 and is bent back upon itself so as'to be seated in the peripheral edge of the head as better indicated by numerals 8 and 9, see Figure 2. The said shank extends downwardly as indicated at 10, 11, being bent slightly outwardly as at 13 and then inwardly toward each other. The inwardly bent portions 13 of each shank are joined at their lower extremities forming a bead 14, said bead having a struck out triangular tongue or extension 15, which is in the nature of a piercing element, which permits the bead 14 to pass through the paper, preliminary to pinching the fastener and secure the sheets 16 together, against the head.

The purpose of bending the shanks 10, 11, at a point substantially intermediate their ends, is to cause the said shanks to collapse or bend outwardly as shown by Figure 5 and clinch the paper between the said shanks and the bottom surface of the fastener head. This is effected as pressure is applied to the head 5 after the said shanks are passed through the paper and particularly to the bead 14 as it ears against a flat surface.

While I have illustrated and described my invention with some degree of particularity, I realize that in practice various alterations therein may be made. I therefore reserve the right and privilege of changing the form of the details of construction or otherwise altering the arrangement of the correlated parts without departing from the spirit of the invention or the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is 1. A fastener of the class described comprising a head, a pair of complementary shanks formed from a single strip of metal bent intermediate their ends and attached to the head, said shanks being bowed outwardly whereby they may be collapsed as pressure is applied to said head.

2. A fastener of the class described comprising a head, a pair of complementary shanks formed from a single strip of metal, each of said shanks being bent upon itself beneath the head and extending downwardly, the downward portion of the shanks being bowed otuwardly and then inwardly and connected to each other forming a bead so that the shanks collapse outwardly when pressure is applied to the head.

3. A fastener of the class described comprising a head, a pair of complementary shanks formed from a single strip of metal, wardly with respect to the head as pressure 1 each of said shanks being bent upon itself is applied therto.-

and seated in a peripheral edge of the head, In testimony whereof I afiix my signature 6&(551 1shagk ezgzegldingldogviiwardly fgclnn thg in presence of two witnesses.

sai lea an ent s i t outwar an then toward each othe i', s id shanks being EDWARD joined together forming a head, a penetrat- Witnesses:

7 1n projection struck out from the bead, WILLIAM A. BRITZ,

said shanks being adapted to collapse out- F. E. LONG. 

